Serena Williams wasted little time in seeing off Japan's Kimiko Date-Krumm after their third-round match was moved under the Centre Court roof with the light fading at Wimbledon.

The world number one and defending champion powered through 6-2 6-0 in 61 minutes to reach the last 16.

At 42, Krumm was the oldest woman ever to reach the third round at Wimbledon.

Analysis

"They were both brilliant in their completely different ways and both deserved their standing ovation. As far as Serena Williams is concerned, she was absolutely perfect and maybe the engraver should start doing the trophy pretty soon.... he could start now really couldn't he?"

Their match had been scheduled for Court One, but with the time approaching 20:30 BST they were moved to Centre, where the roof guaranteed they would be able to finish.

Williams, 31, was surprisingly broken when serving for the first set, to the delight of the Centre Court crowd who wanted a contest in their unexpected bonus match.

The American was not in a charitable mood, however, and responded in kind to take the set before racing through the second to claim her 600th career win.

"That's awesome," she told BBC Sport. "I had absolutely no idea. That feels really good. On Centre Court - what better place to win 600 matches?"

Krumm, who lost to Steffi Graf in the 1996 semi-finals, did at least make one of her targets by keeping the five-time champion on court for over an hour.

"I'm finally starting to feel a little better," Williams added.

"I had such a long clay-court season and my first match I felt was a little awkward, so I'm getting there. I always like to peak towards the end.

"It's unbelievable playing here on Centre Court under the roof - I don't think it gets better for me than playing under a closed roof on grass."